Chapter 8: Draw Instructions
121
Chapter 8:
Draw Instructions
Getting Started: Drawing a Tangent Line
Getting Started is a fast-paced introduction. Read the chapter for details.
Suppose you want to find the equation of the tangent line at X =
for the function Y=sin(X).
1. Before you begin, press
z
and select
4
,
Radian
and
Func
, if necessary.
2. Press
o
to display the Y= editor. Press
˜
„
¤
to store
sin(X)
in
Y1
.
3. Press
q
7
to select
7:ZTrig
, which graphs the
equation in the
Zoom Trig
window.
4. Press
y
<
5
to select
5:Tangent(
. The
tangent instruction is initiated.
5. Press
y
C
2
¤
¥
2
.
2
2
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